# `GSAlert.messageHeightConstraint`

*Instance Property*

## Declaration

```swift
unowned(unsafe) var messageHeightConstraint: NSLayoutConstraint! { get set }
```

```objc
@property (nonatomic, assign) NSLayoutConstraint * messageHeightConstraint;
```

```python
messageHeightConstraint() -> NSLayoutConstraint
setMessageHeightConstraint_(messageHeightConstraint: NSLayoutConstraint)
```